Solid electrolytic capacitor, method for producing same, and solution for solid electrolytic capacitor
a solid electrolytic capacitor and solid electrolytic technology, which is applied in the manufacture of electrolytic capacitors, electrolytic capacitor casings/cabinets/drawers, electrical apparatus casings/cabinets/drawers, etc., can solve the problem of reducing the degree of conductivity of conductive polymers, the tendency of capacitor withstand voltage to fall, and the effect of using a conductive polymer with a high degree of conductivity is weakened, etc. problem, to achiev
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preparation example 1
Preparation of Conductive Polymer Solution (I)
[0135]14.2 g of 3,4-ethylenedioxythiophene, and a solution prepared by dissolving 42.6 g of a polystyrenesulfonic acid (mass average molecular weight: approximately 300,000) in 2,000 ml of ion-exchanged water were mixed at 20° C.
[0136]With the thus obtained mixed solution undergoing constant stirring with the temperature held at 20° C., an oxidation catalyst solution containing 29.64 g of ammonium persulfate and 8.0 g of ferric sulfate dissolved in 200 ml of ion-exchanged water was added, and the resulting mixture was then stirred and reacted for 15 hours.
[0137]The resulting reaction liquid was subjected to a dialysis treatment to remove ion impurities, and an ion exchange treatment was then performed, yielding a solution containing approximately 1.6% by mass of a conductive complex of polystyrenesulfonic acid and poly(3,4-ethylenedioxythiophene) (hereinafter referred to as a PEDOT-PSS solution).
[0138]Imidazole was then added to 100 g of...
preparation examples 2 , 3 , 4
Preparation Examples 2, 3, 4
Preparation of Conductive Polymer Solutions (III), (III), (IV)
[0139]4.8 g of hydroxy ethyl acrylate was mixed with the conductive polymer stock solution (MB) from preparation example 1, and then 4.0 g of pentaerythritol (conductive polymer solution (II)), 6.4 g of pentaerythritol (conductive polymer solution (III)) or 9.6 g of pentaerythritol (conductive polymer solution (IV)) was added and dispersed, yielding a conductive polymer solution (II), a conductive polymer solution (III) and a conductive polymer solution (IV) respectively.
preparation example 5
Preparation of Conductive Polymer Solution (V)
[0140]6.4 g of pentaerythritol and 0.32 g of polyester were mixed and dispersed within 100 g of the conductive polymer stock solution (MB) from preparation example 1, yielding a conductive polymer solution (V).
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